Author Topic: sun powered radio  (Read 1038 times)

0 Members and 1 Guest are viewing this topic.

dudevato

  • Jr. Member
  • **
  • Posts: 59
sun powered radio
« on: August 17, 2004, 09:20:23 AM »
I've already put together an insulated, 40 gal. batch heater for my

'garden shower' (135*F @sundown & 115*F @ sunrise) and lengthened the

wiring in a couple of those little 'garden pathway lights' I mounted

the 'cells' on the roof and the little battery packs/l.e.d. 's were

put in the bathroom's skylight shaft, above the flush, ceiling

mounted plastic panel. So I now have high tech night lights.

This latest project gave me a solar powered radio. I started with a

portable am/fm radio (found in the trash) It used 8 'D' batteries and

at 1.5 volts each I figured 12 volts would power it. I bought one of

those solar cell panels that are advertized to keep your car charged,

when its battery is not used for long periods of time. It did work,

but at medium volume the radio would 'cut out' I figured I was not

getting enough power, so I got another panel. I wired them together so

that both panels 'positives' joined and both 'negatives' joined. I

think this is called in 'series'? Now I can play the radio as loud as

I'd like it. I have the panel mounted on the roof and the wire comes

into the house through a small hole in the alum. window frame. The

radio turns on about 8am and runs till 5:30pm. I'll use it to

entertain my pet parrots, while I'm at work, during the day. I'm sure

if I rigged up a way to 'point' the system into the sun I could get

more listening in, and am already thinking of doing so. This might get use on my weekends at home. This is more

to fulfill my need to tinker than my need for music.

For the high tech crowd here, here are the spec: each panel is a

'amorphous' type and rated at 1.5 watts and 120mA They cost $10.81

each, after taxes. This was a very cool project to put together and

gave me alot more satisfaction than the last $20 I spent on a date,

I'm sorry to say.

Now I'm thinking of a small recirculating fountain for the yard,

solar, of course!

a question: Where will this type of thinking/behavior lead?

I enjoy reading the postings on this site. Can you all

give me links to other sites that are similiar?
« Last Edit: August 17, 2004, 09:20:23 AM by (unknown) »

TomW

  • Super Hero Member Plus
  • *******
  • Posts: 5130
  • Country: us
Re: sun powered radio
« Reply #1 on: August 17, 2004, 11:18:54 AM »
Dude;


+ to + and - to - is parallel


it gives more amps and less volts than:


+ to - which is series


Which gives more volts, less current.


Both give same "wattage" or power.


T


T

« Last Edit: August 17, 2004, 11:18:54 AM by TomW »

hardwired

  • Newbie
  • *
  • Posts: 4
Re: sun powered radio
« Reply #2 on: August 17, 2004, 01:05:13 PM »
This is the biggest and best, imoa.  There are many email lists you can join, do a search on yahoo groups, just setup rules to sort the messages so you don't get over whelmed by the large amounts of email you can receive.
« Last Edit: August 17, 2004, 01:05:13 PM by hardwired »

drdongle

  • Hero Member
  • *****
  • Posts: 552
Re: sun powered radio
« Reply #3 on: August 17, 2004, 06:09:49 PM »
If you add a gelcell battery and don't run the radio during the day you will have juice to run it a night.


Carpe vigor


Dr.D

« Last Edit: August 17, 2004, 06:09:49 PM by drdongle »